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December 10 - December 16, 2012

What is the correct procedure for carrying out preventive maintenance painting work in a small chemical product tank?

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Selected Answers

     Everything depends on the client's budget. We can use power tools for surface preparation for a smaller budget or abrasive blasting for a bigger budget.

From John Harper of Certified Coating Specialists Inc. on December 14, 2012:
     Why are we looking at repainting the asset? Corrosion, abrasion, aesthetics?  Do you need an external or internal repaint?  What is the PH of the chemistry?  What is the temperature of the material being stored? What are the hazards in the immediate area of the tank? What hazards must be planned for as a result of what has been stored in the tank? How will the craftsmen gain access to the asset? What will our emergency rescue plan consist of? What will the ambient and substrate temperatures be when work is to be performed? Will we have to provide atmospheric controls of any form? What is the state of the existing paint? What duration do you want the new paint to last? Will we have any immmediate environmental concerns in the surface prep and other work procedures? What is the existing paint made up of? Is there lead in it? Zinc? Cadmium? Asking a profesional contractor an open-ended question like this one demands allowance for the time to address a myriad of questions that truly need to be considered and answered. Few have all the answers when they first broach such a question. The answers are found in first, knowing the questions to ask; second, inspection; third, testing; fourth, planning; fifth, potentially product (paint patch testing); sixth, results analysis, seventh, execution of agreed to plan; eighth, monitoring results. We, SSPC certified contractors, are capable of repainting any chemical tank. Are you ready to provide us with the accurate answers to the many questions we will pose to provide you with the a job done safely, to a high degree of quality, on a schedule we both agree to at a cost you accept.

From Per Gabrielsson of Free Lance Consultations and Inspections on December 12, 2012:
If the tank is small and the coating close to the end of its life span, reblast and recoat. Do you mean preventive or corrective? Damages in coating only or down to bare steel? If the coating is old and you encounter partial breakdown, what happens to the remaining, presently intact coatings? To touch up local damages may result in weak points, especially of boundaries.

From Per Gabrielsson of Free Lance Consultations and Inspections on December 21, 2012:
Power tooling in chemical tank???!!!

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Tagged categories: Maintenance coating work; Tanks; Tanks and vessels

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